Lamp collar



(No Model.)

A. D. VEST.

LAMP COLLAR. No. 296,255. Patented Apr. 1, 1884.

WITNESSES INVENTQR ATTORNEYS n PETERS, Fholwhlhograpbcr. Washington. u'c.

- collar of the oil-chamber between the lamp- UNITED STATES PATENT OFFICE.

AMERICUS D. VEST, OF SAN J OSE, CA LIFORNIA.

LAM P-COLLAR.

SPECIFICATION forming part of Letters Patent No. 296,255, dated April 1, 1884-.

Application filed September 7, 1883.

To all whom it mag concern.-

Be it known that I, A. D. VEST, a citizen of the United States, residing at San J os, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Lamp Attachments; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of this invention, and is a perspective view. Fig. 2 is a vertical section. Fig. 3 is a top View of the lamp attachment, and Fig. 4 is a perspective view of the same.

This invention has relation to lamp attachments; and it consists in the construction and novel arrangement of devices, as will be hereinafter fully described, and particular] y pointed out in the claim appended.

Referring by letter to the accompanying drawings, a designates a lamp having my improved oil-cup and ventilator attached to the burner b and the collar 0. The oil-cup and ventilator d has an externallythreaded flange, e, on its lower side, which screws into the female screw 0. The internal wall, f, of the oil-cup extends up nearly to the internal threads, g, of the device, the external wall of the device extending clear to the top of the combined oil-cup and ventilator. The ventilating-perforations h in the external wall, 2,

(No model.)

of the device are above the top of the oil-cup, and the internal wall,f, is provided near. the bottom with two or more perforations, k, to permit any oil that may get into the oil-cup by shaking or jostling the filled or partiallyfilled lamp to drip back into the oil-chamber. This inner wall is also slotted above the perforations k, to permit the free escape of any gas which may rise from the oil in the lamp, the ventilating perforations h allowing the escape of the gas from the oil chamber, and thus prcvent'or control explosions.

A device of this construction prevents accidental spilling of the oil, and also controls the explosions'of the gas in the oil-chamber.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In an oil-lamp, the combination, with the collar 0, of the attachment 01, having the outer wall of the oil-chamber perforated near its upper end, the inner wall, f, slotted near its upper end for the escape of gas from the lamp, and perforated at k for the return of oil to the lamp, the inner wall internally threaded at its upper end to receive the burner, and provided at its lower end with a threaded flange to engage the threads of the collar, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

AMERICUS D. VEST. 

